package com.test.ch02;

public class KeyBoard implements IUsb{

    @Override
    public void openDevic() {
        System.out.println("打开键盘...");
    }

    @Override
    public void closeDevic() {
        System.out.println("关闭键盘...");
    }
    public void input(){
        System.out.println("键盘输入...");
    }
}
